Power Electronics

3-MHz, 100-mA Step-Down DC/DC Converter

Texas Instruments Incorporated (TI) introduced the TPS62730, a 3-MHz, 100-mA synchronous step-down DC/DC converter, which integrates a bypass switch and a unique DCS-Control technology and extends battery run-time by 20 percent in low-power wireless and MSP430 MCU-based applications. The high-performance device has an operating current of only 25 uA and supports many low-power applications, such as Bluetooth® low energy systems, metering and building technologies, mobile phones, consumer electronics, medical and human interface devices.

The TPS62730 reduces current consumption drawn from the battery in transmit and receive modes by achieving 95-percent power conversion efficiency and an on-chip bypass switch with only 30-nA of power. The converter also generates less than 15mVpp typical output voltage ripple, allowing it to support many low-power RF applications, such as those powered by TI's 2.4-GHz CC2540 and CC430 system-on-chip (SOC) solutions.

DCS-Control technology is an advanced regulation topology that combines the advantages of hysteretic and voltage mode control within a single device, enabling excellent AC line and transient load regulation. The feature provides seamless transition between high-load and light-load (power save) operation. An additional voltage feedback loop also ensures DC accuracy. DCS-Control technology alleviates the need to research external filtering components, thus reducing associated space and cost.

Texas Instruments
Part Number: TPS62730

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